on the edge of ,on the border of
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on the edge of ,on the border of
答案
Longman字典的解释是(英文版的,看起来容易体会)[on the edge of something] close to the point at which something different, especially something bad, will happen:1.Their economy is on the edge of collap...
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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